Title :
A 1-GHz direct digital frequency synthesizer in an FPGA
Author :
Bergeron, Melanie ; Willson, Alan N.
Author_Institution :
Electr. Eng. Dept., Univ. of California, Los Angeles, Los Angeles, CA, USA
Abstract :
The architecture and design of a high-speed quadrature direct digital frequency synthesizer (DDFS), implemented in an FPGA, is presented. The architecture is based on a novel multiplier-based angle-rotation algorithm that does not distort the magnitude of the sine and cosine outputs. This algorithm maps well into the DSP slices present in modern FPGAs. Implemented in a Xilinx Virtex-7 device, the design dissipates 54.9 mW of power at 1 GHz, a performance previously attainable only in ASIC designs.
Keywords :
digital signal processing chips; direct digital synthesis; field programmable gate arrays; multiplying circuits; ASIC designs; DDFS; DSP slices; FPGA; Xilinx Virtex-7 device; cosine outputs; frequency 1 GHz; high-speed quadrature direct digital frequency synthesizer; multiplier-based angle-rotation algorithm; power 54.9 mW; sine outputs; Clocks; Digital signal processing; Field programmable gate arrays; Frequency synthesizers; Mirrors; Read only memory; Wireless communication; Direct Digital Frequency Synthesizer (DDFS); Field Programmable Gate Array (FPGA); angle rotation;
Conference_Titel :
Circuits and Systems (ISCAS), 2014 IEEE International Symposium on
Conference_Location :
Melbourne VIC
Print_ISBN :
978-1-4799-3431-7
DOI :
10.1109/ISCAS.2014.6865132
